Sight for firearms.



PATENTED DEC. 4, 1906.

B. E. HARTMANN.

SIGHT FOR FIREARMS.

APPLICATION FILED SEPT. 28, 1905.

firm 14,0 5 :25, W5:

UNITE STATEtl l sit'l BRUNO E. HARTMANN, (3F GREENFlELD, MASSAGEUSlETTlIS.

SEGHT FQFl No. senses.

To all whom it may concern:

Be it known that I, BRUNO ERNEST HART-- MANN, a citizen of the United States of America, residing at Greenfield, in the county of Franklin and State of illnssachusetts, have invented new and useful Improvements in Sights for Firearms, of which. the following is a s ecificstion.

his invention relates to gun-sights, and has for its object the improvement in the construction of a. so-celled open sight,

whereby a clearly-defined sigh ting point may be brou ht to bear on the object aimed at without blurring, a. further object of the invention being to associate with a sight embodying the above features means to assist the eye in holdin Y the gun in the proper vertical plane; nnd heving these ends in view the invention consists in locating a sightingpoint about flush with the line which constitutes the bottom of a groove cut in the upper edge of the body of the sight, the latter thus belng provided with a horn at each side of this groove, the area of the face of these horns bearing a certain proportion relative to the area. of the groove, whereby all blurring is eliminated by the blotting out of the objects immediately contiguous to the obj cct aimed at.

The sight is adapted prininril or the front sight of a rille.

In the drawings forming part of this specification, l igurc 1 1s a perspective view of a sight constructed according to this invention. Fig. 2 is a front elevation of the same. Fig. 3 is a sectional view in the plane of line 3 3, Fi 2. Fig. 4 is a side elevation 01 Fig. 2, and Fig. 5 1s a front elevation showing a construction slightly dill'rent "from.

that shown in Fig. 2 regards means to assist the eye in properly alining the sight. Fig. 6 is n front elevation of a sight, showing a. slight modilirntion oi the construction illustrntcd in Fig. 2. Fig, 7 is a perspective view showing the sight attached to the barrel of n liroarln.

in carrying out this invcntion,tho sight is made in block l'orni hnvi'nga beveled base portion 1, whereby it may be secured to the barrel ol a gun in the usual manner, and prw jotting above this base is a body portion 1), preferably integral with the base and in tho form of n rectangular block, the lure c of which is vertical lo the axis of the barrel on which the sight is lixed. Extending through Specification of Letters Eetent.

, Application filed September 28, 1906. Eerial l lo 280,447.

this body portion in line with the iifilifi' of the barrel and (sitting the upper border thereof is e. groove d, rhly substantial y rec tengular in cross-section, to the end that the bottom of the groove illl1;.l. :1 str 'ght line, es f. v

it is essential th t the two he on g 5], Wk ch rting oi. the cove d tl'irow bear certain relation to the eross-sectionel area of the grzjiove (l or rather to the width of the groove, to the end that the line of vi sion extends through the groove to the object aimed at the face of these horns may blot out n certain nreeca ch side of and below the ohject aimed etflilor it is only by thus blotting out objects near the objeot aimed at that the base-linefoi the sight can be brought to beer on that object without blurring. Furthermore, in order'to provide a has permit the eye to take in the object aimed at the groove a must be relntivelye wide one. it therefore becomes necessary to locate a sighting-point centrally of that line in order to eline the axis of the barrel with the object aimed at; but this sightingpoint, il 'i t should project above seidbnselinc, would blur when brougx t to ar on an object il-lf a. distance; but if of e dillorcnt color from the l'z'tco oi the sight and if located in that face his position substantially tangent to or not exteinling above sold base-line the letter will not bluinor will the point blur, and thus loctn ed, if the sighting-point (indicated by f1) 'lfilit: largo, thorontor of the bosoline will be clearly indicated. B making the sighting point. It ol a. relatively large urea end in the form. of it circular plug driven int :1. socket in the body of the sight it constitutes a very fine sighting-point, bcrnusc ol' the "fact that the upper edge of the plug where it is substantially tangent to the base-lino f will be very clearly defined. The preferred form of sight, therefore, is that in which the area of the horn on ouch side of the sightirig-groove (1 shall be substantially equal to the crossseclional area ol' the groove, the latter being fncl'orubly of rectangular form in order to provide n suitable baswlino, (though the lattor is not ubsolulvl) cssrntiuhl l'or 1hrsight is operative il mndc in the lul'lll shown in .lllg. (i, in which the sighling-grmnc is practically somirirculur in cross-section.

in all cases it is prcl'ernblc that the two i line ol sulli cient length to he of any ell'ectn e use and to guide-points y of a contrasting color be located in the face of the horns g or some like guide points or lines, as shown in Fig. 5, whereby the eye may have a line, real or imaginar to aid it in the adjustment of the gun-. in the suitable vertical plane, and in shooting it is. very easy to effect this alinement by drawing an imaginary line throu 11 two guide-points y'dj, and thus ad lsting t e arm y, but, as state the preferre construction is to cut a groove d which is rectangular in cross-section, as thereby the vertical borders'may serve to effect this alinement independent y of the guide points or lines. It is 1n any event desirable to associate with the sight constructed as described, having a sighting-point located centrally of a baseline, two guide points or lines like the points 1 j or'the-lines k in Fig. 5 for the "reason that in the woods or toward evening, when it is dark, if these guide-points and the sighting-point be made of some contrasting color relative to the face of'the sight it makes it much easier .to locate the object aimed at than when the face is left un rovided with these uidingpoints, for as t ese points are locate on the sight the object aimed at'can be located between them and the immediately contiguous area near the object aimed at is blotted out by the' broad faces of the horns and the body below the sighting line or point.

This si ht is constructed to be used near the muzz e only, and as used near the muzzle it is used in connection with the aperture rear sight. e

Having thus described my invention, What I claim; and desire to secure by Letters Patent of the United States, is'

1. A muzzle gun-sight in combination with a rear aperture-sight consisting of abodyhaving a substantially rectangular groove in the up er bprder thereof whereby'a horizontal sig ting-line is provided, this groove resulting in the formation of a horn on each side thereof, a piece of material of a diil'erent color from-that of the sight being located 'centrally of said horizontal sighting line flush with the same, and like pieces being located in the same horizontal plane in. each horn of the sight above said sighting-lino.

2. A gun-sight consisting of a body having a substantially rectangular groove in the upper border thereof whereby a horizontal x sighting-line is provided, this groove resultmg in the formation of a horn on each side thereof, apiece of material of a different color from that of the sight being located centrally 1 of said horizontal sighting-line about line i with the same, and parallel bars of like material being located in the vertical center of each horn at right angles to said sighting-line. 31 A muzzle gun-sight in combination with a rear aperture sight consisting of a bodyportion adapted for attachment to the barrel, a longitudinal rectangular groove in the upper portion of the body and havin; its side and bottom dimensions substantially equal, whereb an unbroken horizontal sighting-line with a ihrge surface is provided, the. groove resulting in the formation of a horn on each side thereof, a piece of material of different color than the body portion and located centrallyof the horizontal sighting-line and flush with the same, and. also a piece of material of different color than the body portion being located in each horn midway of the width of the same whereby accuracy in sighting the arm in both horizontal and vertical positions is obtained.

4. Amuzzle gun-sight for use with a rear aperture-sight consisting of a body having a channel therein parallel with the bore of the gun whereby a sighting base-line having an unbroken surface is provided, said channel resulting in the formation of a horn on each. side thereof and having an area substantially equal to that of the channel in cross-section,

a piece of material different in color from the sight-body beingembedded in each. horn in the same horizontal. plane and above the sighting-line, and another piece of like characteristics being embedded in the body of the sight midway between the piecos'in the horns and substantially liush with the sightingline. Y

5. In combination with the barrel and tnbular rear sight of a firearm, a muzzle-sight comprising the following elements to wit:- a base-piece having a longitudinal roove in the upper side thereof and provi ing horn portions on the opposite sides of the groove substantially the same in dimensions as the area of the groove, pieces of material differcatod centrally of the horizontal sigh line of the groove and flush with the same, pieces of inatcrial diderent in color than the aforenientioned piece, also embedded in the body portion and in each horn thereof, and midway of the width of the same whereby accurac yf oi sighting the arm inboth horizontal and yertical ositions' through the rear tubular aperture is attained, as described.

BRUNO E. HARTMANN. Witnesses:

WM. H. CEAPIN, K. I CLnMoNs. 

